Flushing-tank.



WILLIAM WILLIAMS, OF SAN FRANCISCO, CALIFORNIA.

FLUSHING-TANK.

Specification of Letters Patent.

Patented. July 17, 1906.

Application filed May 29, 1905. Serial No, 262.770.

To all whom it may concern:

Be it known that LWILLIAM A. WILLIAMS,

- a citizen of the'United States, residing at San shaped packjngFrancisco, in the county of San Francisco and State of California, haveinvented certain new and useful Improvements in Flushing-Tanks, of whichthe following is a specification.

This invention relates to improvemen ts in fiushing-tanks, andparticularly to valves used therein for admitting water into said tanks,the object of the invention being to provide a valve which will whenopen throw a powerful jet of water, said jet being utilized to inj ectwater from the tank either to drive the water into the siphon to flushthe bowl or to assist in refilling the water seal.

A further object is to provide a valve of this character which, incombination With mechanism for releasing a fioat, will provide simplemechanism for emptying the tank.

In the accompanying drawings, Figure 1 is a vertical longitudinalsection of the tank. Fig. 2 is a vertical cross-section on the line 2 2of Fig. 1. Fig. 3 is an enlarged vertical section of the valvemechanism. Fig. 4 is an end view of a valve-body.

Referring to the drawings, 1 represents a tank to which water issupplied by a pipe 2. Said pipe 2 connects in the interior of the tankwith a T-shaped pipe 3, upon the upper end of which is secured avalve-casing 4, having a seat 5 for the valve-plunger 6. Said plunger isprovided on its end with a Washer 7, which rests upon the seat, and Witha cup- 3 at the upper end. Around the stern 9 of said plunger isa'coiled spring v 10, abutting against the cap ll and normally.depressing the plunger upon its seat. The screw 12, which holds theWasher 7 to the plunger, and also the stem 9 are channeled, as shown at13, to permit the passage of water from below the plunger to the chamber14 above the same, thereby causing the pressure of the water in saidchamber 14 to force the plunger onto its seat. The spring 10 is for thepurpose of overcoming friction. The valve-casing is formed Withapertures 15 above the seat, through which, when the plunger is raised,the water can be discharged into the tank, and said casing is alsoformed with an inverted-cup-shaped shield 16, which having its loweredge or mouth directed inward or toward the casing 4 serves to confinethe water passing through said apertures 15 and direct it downwardaround the side of 'the casing and the T-shaped pipe, and thus preventit splashing upward in the tank.

On the side of the T-shaped 'pipe' 3 is formed a lateral extension 20,connecting With said pipe through a small aperture 21, and into saidextension is screwed a valvebody 22, in which slides a hollow valve 23,carrying a Washer 24, secured to the valve by a screw 25. When the valve23 is pressed in- Ward, water can pass from the pipe 3, through theaperture 21, around the Washer 24 on the end of the valve, and into theinterior of the valve through apertures 26, which are then exposed,escaping at the end of the hollow valve and forming a jet. When thevalve is moved outward in the valve-body, the Washer 24 then restsagainst the end of the valve-body, which forms a valve seat for saidWasher, preventing the passage of Water' in the hollow plunger. Upon anarm 28, formed integral with the extension 20, is pivoted a forked lever29, w 'ch engages collars 30, formed upon the hollow valve or plunger23, the -other end of the lever 29 being secured to a rod 31, carrying afloat 32.

The jet from the hollow plunger is discharged into the mouth of a siphon33, the entrance or larger end of which preferably rests upon the bottomof the tank and is formed elliptical or vertically fiattened, the objectbeing to discharge as much water as possible into the siphon at a verylow level. This siphon is formed in a continuous curve, except thehorizontal entrance end and the vertical discharge end.

The casing 4 is formed with an extension 34, into which is screwed avalve-body 35, in which slides a valve 36, having apertures 37 similarto the apertures 26 and being holluw,so as to discharge a j etthereform. This valve is similar to the lowervalve, and the descriptionof the latter will therefore apply to the former. It is reciprocated bymeans of a fioat 38, having a stem 39, attached to a lever 40. Thisvalve discharges a jet into the mouth of a refilling-tube 41, whichleads to the upper portion of the siphon.

On the side of the siphon is secured a guide 42, between which guide andthe siphon passes the stem 31 of the fioat 32, and upon said guide ispivoted a latching-lever 43, the upper end of which is attached by awire or corcl 44 to a bell-crank lever 45, to another arm of which isattached a chain or cord 46.

The operation of the apparatus is as follows Upon pulling the chain 46the latch is withdrawn from its position, engaging the fioat 32, and thefloat, which is normally submerged, immediately springs upward by reasonof its buoyancy. This moves the lower plunger inward, opening the lowerjet-valve and dischargn a jet into the lower end of the siphon. This etyits momentum therefore drives forward the water in the siphon, the waterthus injected completely filling the siphon and siphonin the tank. Asthe water-level falls in the tan the fioats descend, the lower floatclosing the lower jet and the upper float opening the upper jet. Theopening of the upper jet reduces the pressure above the main plunger, sothat said plunger rises under the action of the greater pressurebeneath, and

the water is discharged from the supply-pipe through the openings 15into the tank. This starts the refilling of the tank. The discharge ofthe water in the upper jet not only serves to lift the plunger from itsseat and admit water into the tank, but discharges water into the top ofthe siphon, and, furthermore, when the water in the tank has reached thelevel of the mouth of the refillin -tube said jet injects water from thetan( into said mouth and carries it upward into the top of the siphon,thus refilling the water seal in case the atter has been siphoned, thewater so injected falling down the discharge-pipe of the siphon to thewater seal 48, where itremains and forms a seal. As the water rises inthe tank the upper jet is closed, and the lower jet is also closed onaccount of the engagement of the fioat-stem 31 with the latchinglever 43which holds said float-stem down. By means of this Construction verysmall fioats can be used, for the floats are used to operate very smalland light valves working against very small pressures. With presentconstructions the floats are used to operate large valves, such as themain valve or plunger 6 in the main casing. This requires a float of siXinches in diameter. With the present Construction fioats of two inchesin diameter may be used. The present Construction also avoids anyWhistling noise while the tank is filling, because as the fioats risethe pressure 'of the water at the back of the jet-valves forces saidvalves to their seats and shuts off the water suddenly. A furtheradvantage of the Construction is that the valve is easily taken topieces and assembled. The device occupies very little room, especiallythe fioats, and on account of these being small there is no longer anydanger of their rubbing up against the sides of the tank, causing themto wear out and leak,`which is an objection to the floats at present inuse.

It will be observed that the construetion of the jet-valves is such thatbefore the Washer 24 reaches its seat the water is cut off by theapertures 26 in the valve, passing into the valve casing or body. TheWasher then makes the valve absolutely Water-tight.

The inverted shield 16 prevents the entering water making a noise andsaves an eX- tra tube commonly used to bring the water to the bottom ofthe tank.

I claim- 1. In an apparatus of the character described, the means forthrowing a jet of water comprising a valve-body, a tubular valve slidintherein and having a discharge-opening in line with the tubular apertureof the valve to discharge the jet therefrom, said valve having aperturesin its sides, and having a Washer secured upon its end adapted to restagainst the end of the valve-body which then forms a valve-seat for saidWasher, a lever operatively connected to said valve to reciprocate thesame, and a float connected to said lever whereby the rise and fall ofthe float reciprocates the valve, substantially as described.

2. In combination with awater-inlet pipe having a valve-controlledinlet-aperture, a siphon, a pipe leading therefrom having a water seal,an open-ended pipe leading to the top of the siphon, and a jet-valveconnected with the inlet-pipe and discharging into the mouth of theopen-ended pipe, substantially as described.

3. In combination with a tank, a waterinlet pipe havin a valve-seat, aplunger on said seat, means or admitting pressure-Water to the top ofthe plunger to balance the valve, a siphon, a jet-valve connected tosaid inletpipe below the valve-seat, s'aid jet-valve being provided withmeans, when opened, for discharging a jet into the mouth of the siphon,a float arranged by its rise to open said valve, a latching device forholding down said float, and means for Operating said latch- IOO IIO

ing device to release the float to discharge the t jet to siphon thetank, substantially as described.

4. In combination With a water-inlet pipe having a valve-controlledinlet-aperture, a siphon, a pipe leading therefrom having a water seal,a refilling-pipe leading from the top of the siphon, and a valveconnected with the inlet-pipe and controlling said refilling-pipe,substantially as described.

5. In combination with a tank, a valvecontrolled wat er-inlet pipe forfillin the tank, a jet-valve chamber connected wit the water-inlet pipeprovided with means, when open, for discharging a jet, a siphon forsiphoning the tank into the mouth of which the jet is dscharged, a floatfer Operating by hand in the presence of two subseribng Wt ts rise saidjet-valve, a latehmg devce for nesses. controllng the rise of the fioat,and means for Operating said latchng devce to release t WILLIAMS' 5 thefioat to dscharge the jet to siphon the Wtnesses:

tank, substantally as described. FRANOIS M. WEIGHT,

In wtness'whereof I have hereunto set my BESSIE GORFINKEL.

